Sint Maartenszee Weather in September

September in Sint Maartenszee brings pleasant temperatures, with daytime highs of 19°C (66°F) and nights around 14°C (57°F). Quite a bit of rainfall is expected, around 102 mm (4 in), so pack an umbrella.

Rainfall in Sint Maartenszee in September

Historically, the month has about 16 days of rain, averaging 102 mm (4 in) in total. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.

Temperature in Sint Maartenszee in September

Temperatures in Sint Maartenszee in September top out at 19°C (66°F) and drop to 14°C (57°F) overnight. September is known for being in the summer season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Sint Maartenszee in September

The city usually sees around 141 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Sint Maartenszee in September

September sees wind speeds averaging 6 m/s (12 knots). You'll experience strong winds that cause whole trees to sway and require effort when walking against them. As an average, expect variation from moderate breezes to particularly windy days that affect daily routines.

Average water temperature in September

At 16°C (61°F), the water is cool but manageable for those who don't mind a bit of a shock getting in. Most people adjust after a few minutes.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Sint Maartenszee.

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• January
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For a detailed overview over the year and the best time to visit the Netherlands, check out our Sint Maartenszee's climate page.

Sint Maartenszee Temperature in September

Min Temperature 14°C (57°F)  

Max Temperature 19°C (66°F)  

Water Temperature 16°C (61°F) *  

Chance of Rain 53%  

Precipitation 102 mm (4 in)  

Rainy days 16 days  

Humidity 81% *  

Windspeed 6 m/s (12 knots) *  

Sunshine 141 hours *  

Percentage Sunshine 37% *  

* Data from: De Kooy, the Netherlands (15 KM, 9 Miles).

What to Wear in Sint Maartenszee in September

For Sint Maartenszee in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 16°C (61°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Sint Maartenszee in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the Netherlands, check out our Sint Maartenszee's climate page.

More climate data for Sint Maartenszee

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Sint Maartenszee climate overview or explore weather in the Netherlands.